package com.example.demo.customer;

import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;


@Service
public class CustomerService {
    private final static Logger LOGGER= (Logger) LoggerFactory.getLogger(CustomerService.class);


    private  final CustomerRepository CustomerRepository;
    @Autowired
    public CustomerService(CustomerRepository CustomerRepository){
        this.CustomerRepository=CustomerRepository;
    }
    List<Customer> getCustomers(){
        LOGGER.info("getCustomer called");
        return CustomerRepository.findAll();}
    Customer getCustomer(Long id){
        return  CustomerRepository
                .findById(id)
                .orElseThrow(() ->{
                    NotFoundException notFoundException=new NotFoundException("customer"+id+"无法找到");
                    LOGGER.error("error:getCustomer{}"+id,notFoundException);
                    return notFoundException;
                });


    }

}
